Tuesday, July 29, 2014

Normal arterial blood gas values and serum electrolytes mnemonic

Know the normal pH of blood 7.35 - 7.45.. That's all you need to remember I promise!

Take the numbers after the decimal, 35 - 45; and that's your pCO2.

Divide 45 by 2, approx 22; and that's your bicarbonate levels.

Multiply 45 by 2, that is, 90; and that's your pO2.

So in summary -
pH: 7.35 - 7.45
PCO2: 33 - 45 mm Hg
PO2: 75 - 105 mm Hg
Serum bicarbonate: 22 - 28 mEq/L

That's all!

Eid mubarak to everyone :)


Updated on 11th June, 2016: Illustration

Normal arterial blood gas value mnemonic
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